CN110519791A - A kind of car wireless terminal devices, systems, and methods - Google Patents
A kind of car wireless terminal devices, systems, and methods Download PDFInfo
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- CN110519791A CN110519791A CN201910831659.4A CN201910831659A CN110519791A CN 110519791 A CN110519791 A CN 110519791A CN 201910831659 A CN201910831659 A CN 201910831659A CN 110519791 A CN110519791 A CN 110519791A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
- H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of car wireless terminal devices, systems, and methods for promoting the online rate of rail traffic wireless terminal, by Redundant backup soft handoff, realize that locomotive wireless terminal greatly improves online rate, improve user experience.Its technical solution are as follows: car wireless terminal device using double set wireless modules designs, overcome the single limited defect of operator's base station range and caused by go offline.Seamless switching is realized using hot standby soft handoff simultaneously, so that the online rate of radio transmitting device obviously greatly improves, user experience is greatly enhanced.
Description
Technical field
The present invention relates to rail transportation vehicle-mounted wireless communication techniques, and in particular to a kind of online rate of train radio terminal promotion
Car wireless terminal devices, systems, and methods.
Background technique
Currently, Along Railway has three movement, telecommunications, connection public network base stations, any operator can not be each to railway
Cross-channel is effectively covered.Most rail vehicle-ground radio data transmitting device only accesses an operator, but by
It is formed on the restriction of existing single operator base station, is often gone offline, is lost and link with remote server.Client end interface information is more
New cycle stretch-out affects the experience of terminal user.
Summary of the invention
A brief summary of one or more aspects is given below to provide to the basic comprehension in terms of these.This general introduction is not
The extensive overview of all aspects contemplated, and be both not intended to identify critical or decisive element in all aspects also non-
Attempt to define the range in terms of any or all.Its unique purpose is to provide the one of one or more aspects in simplified form
A little concepts are with the sequence for more detailed description given later.
The purpose of the present invention is to solve the above problem, provides a kind of vehicle for promoting the online rate of rail traffic wireless terminal
Wireless terminal device, system and method are carried, by Redundant backup soft handoff, realizes that locomotive wireless terminal greatly improves online
Rate improves user experience.
The technical solution of the present invention is as follows: present invention discloses a kind of vehicle-mounted nothings for promoting the online rate of rail traffic wireless terminal
Line terminal installation, car wireless terminal device is respectively connected to first network and the second network using double set redundancy structures, for building
Vertical antenna feeder radio communication physical link, controls signal detection and networking, wherein car wireless terminal device includes real-time
Signal detection module, auto dialing module and routing gateway module, the output end of live signal detection module are separately connected automatically
Dial module and routing gateway module, the input terminal of routing gateway module are separately connected live signal detection module and auto dialing
Module, in which:
Live signal detection module, the real-time detection for the environment that dials；
Auto dialing module, for network state detection and the acquisition of AT instruction dialing and automatic IP；
Routing gateway module, for Route Selection judgement and gateway and domain name mapping setting.
One embodiment of the car wireless terminal device according to the present invention for promoting the online rate of rail traffic wireless terminal, vehicle
Wireless terminal device is carried using the switching between hot standby soft handoff mechanism realization first network and the second network.
One embodiment of the car wireless terminal device according to the present invention for promoting the online rate of rail traffic wireless terminal, it is real
When signal detection module include SIM card detection unit and RF signal strength detection unit, in which:
SIM card detection unit leads to module to first the whole network respectively and second the whole network leads to the communication interface transmission detection of module
The instruction of SIM card state determines whether SIM card state is normal according to the feedback information of the state-detection received；
RF signal strength detection unit leads to module to first the whole network respectively and second the whole network leads to the communication interface hair of module
The instruction of network signal intensity is surveyed in inspection, determines network signal intensity according to the feedback information of the signal strength received.
One embodiment of the car wireless terminal device according to the present invention for promoting the online rate of rail traffic wireless terminal, from
Dynamic dial module includes network state detection unit, dialing unit and automatic acquisition IP address unit, in which:
Network state detection unit, the communication interface transmission for leading to module and the logical module of second the whole network to first the whole network are looked into
The instruction for asking network registry state determines whether SIM card has succeeded in registration, whether accesses according to the result that instructions query is fed back
Wireless network where SIM card attribute, if having the condition of access wireless public network；
Dialing unit, for using NDIS dial mode, by leading to module and the logical module hair of second the whole network to first the whole network
Dial instruction is sent, determines whether dialing succeeds according to feedback result；
It is automatic to obtain IP address unit, for obtaining the IP address of remote server automatically, it is successfully accessed remote server,
Obtain internal communication links.
One embodiment of the car wireless terminal device according to the present invention for promoting the online rate of rail traffic wireless terminal, road
It include routing gateway unit and domain name mapping setting unit by gateway module, in which:
Routing gateway unit, the whole network high for selection signal quality lead to module as present communications network, carry out DNS solution
Analyse the processing of server；
Domain name mapping setting unit carries out default route configuration in advance.
Present invention further teaches a kind of car wireless terminal system for promoting the online rate of rail traffic wireless terminal, vehicle-mounted nothings
Line terminal system composition includes processor, first the whole network leads to module, second the whole network leads to module, power splitter and car antenna, processing
Device leads to the logical module of module, second the whole network by two-way communication interface and first the whole network establishes data connection respectively, and first the whole network is logical
The radiofrequency signal delivery outlet that module and second the whole network lead to module is electrically connected to power splitter, and the radiofrequency signal delivery outlet of power splitter is electrically connected
It is connected to car antenna, in which:
Processor is configured to car wireless terminal device as described above, for the data transmit-receive to car wireless terminal
Control and communication link is safeguarded, is set automatically when first the whole network leads to module or second the whole network leads to module access
It is standby to enumerate, generate device node；
First the whole network leads to module and second the whole network and leads to module, is used to base station access, with operator communication mode automatic
Match, the physical channel of remote data communication is provided；
Power splitter, for providing radio-frequency channel for car wireless terminal.
Present invention further teaches a kind of methods for promoting the online rate of rail traffic wireless terminal, and method is in vehicle as described above
It carries and is realized on radio terminal system, this method comprises:
Step 1: SIM card detection unit in live signal detection module first the whole network into car wireless terminal respectively
The communication interface that logical module and second the whole network lead to module sends the instruction of detection SIM card state, the feedback letter of reception state detection
Breath to detect whether SIM card is in normal condition, then passes through the RF signal strength detection unit in live signal detection module
The instruction for leading to the communication interface transmission detection network signal intensity of module and the logical module of second the whole network to first the whole network respectively, receives
The feedback information of signal strength；
Step 2: the network state detection unit in auto dialing module leads to module to first the whole network and second the whole network leads to mould
The communication interface of block sends the instruction of inquiry network registry state, judges whether SIM card succeeds in registration according to query result, if
Wireless network where having accessed SIM card attribute and the condition for having access wireless public network, then, by auto dialing module
Dialing unit use NDIS dial mode, leading to module Sending dialled number by leading to module and second the whole network to first the whole network respectively refers to
Order is dialled, and obtains remote server automatically by the automatic acquisition IP address unit in auto dialing module after delay
IP address, access the remote server to obtain internal communication links；
Step 3: mould is led to by the high the whole network of the one of signal quality of routing gateway Unit selection of routing gateway module
Block carries out the processing of dns resolution server as present communications network.
The present invention, which compares the prior art, to be had following the utility model has the advantages that the device of the invention covers spy using Along Railway base station
Point, car wireless terminal are overcome the single limited defect of operator's base station range and are made using double set wireless module designs
At go offline.Hot standby soft handoff is used simultaneously, seamless switching is realized, so that the online rate of radio transmitting device obviously substantially mentions
Height, user experience are greatly enhanced.Compared to the prior art, the present invention solves the problems, such as frequently to go offline, and provides client
Satisfaction；The number that device goes offline, significant increase are substantially reduced so that network seamless switches using hot backup redundancy mode
The Experience Degree of user；The promotion of the online rate of the present invention, the car-ground data transmission efficiency of significant increase, promotes rail vehicle
Carry flourishing for equipment informatization.
Detailed description of the invention
After the detailed description for reading embodiment of the disclosure in conjunction with the following drawings, it better understood when of the invention
Features described above and advantage.In the accompanying drawings, each component is not necessarily drawn to scale, and has similar correlation properties or feature
Component may have same or similar appended drawing reference.
Fig. 1 shows an implementation of the car wireless terminal device of the promotion online rate of rail traffic wireless terminal of the invention
The functional block diagram of example.
Fig. 2 shows an embodiments of the car wireless terminal system of the invention for promoting the online rate of rail traffic wireless terminal
System form figure.
Fig. 3 shows the car wireless terminal system embodiment of the promotion online rate of rail traffic wireless terminal of the invention
Overall operation flow chart, the i.e. flow chart of an embodiment of the method for the promotion online rate of rail traffic wireless terminal.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.Note that below in conjunction with attached drawing and specifically real
The aspects for applying example description is merely exemplary, and is understood not to carry out any restrictions to protection scope of the present invention.
As shown in Figure 1, the implementation of the car wireless terminal device of the promotion online rate of rail traffic wireless terminal of the invention
Example includes: live signal detection module, auto dialing module and routing gateway module.
Live signal detection module, auto dialing module and routing gateway module are mounted on car wireless terminal device
It is interior.The output end of live signal detection module is separately connected auto dialing module and routing gateway module, routing gateway module
Input terminal is separately connected live signal detection module and auto dialing module.
Car wireless terminal device controls signal detection and networking for establishing antenna feeder radio communication physical link
System.Wherein, real-time detection of the live signal detection module for the environment that dials.Auto dialing module for network state detection and
The acquisition of AT instruction dialing and automatic IP.Routing gateway module is for Route Selection judgement and gateway and domain name mapping setting.
Live signal detection module includes SIM card detection unit and RF signal strength detection unit.
SIM card detection unit sends the instruction of detection SIM card state to the communication interface that two the whole networks lead to module respectively, connects
Receive the feedback information of state-detection.For example, sending AT+CPIN command detection SIM card state, return+CPIN:READY are indicated
SIM card is normal.
It is strong that RF signal strength detection unit sends detection network signal to the communication interface that two the whole networks lead to module respectively
The instruction of degree, the feedback information of received signal strength.For example, sending AT+CSQ instruction checking network signal intensity, return+
CSQ:**, 99, if * * is between 10 to 31, numerical value shows that more greatly signal quality is better.Routing gateway module select signal matter
Measure high conduct present communications network.
Auto dialing module includes: network state detection unit, dialing unit and automatic acquisition IP address unit.
Auto dialing module is configured to treatment process below: firstly, network state detection unit leads to mould to two the whole networks
The communication interface of block sends AT+CREG instructions query network registry state, and returning to 5 indicates to succeed in registration, and has accessed SIM card category
Property where wireless network, have access wireless public network condition.Then, dialing unit uses NDIS dial mode, by complete
Netcom module Sending dialled number AT instruct QCRMCALL=1,1, return $ QCRMCALL:1, V4 as a result, indicate dial-up success.By
After delay, the IP address of remote server is obtained automatically by obtaining IP address unit automatically, such as order udhcpc-i wwan0
Obtain the IP address of remote server；As can correct obtain, then it is successfully accessed carrier server, obtains internet communication chain
Road.Meet access requirement just automatically into dialing process when two the whole networks lead to the parameters such as signal strength, the column net of module, waits road
By the selection of gateway module.
Routing gateway module includes: routing gateway unit and domain name mapping setting unit.Routing gateway unit is for selecting
The high the whole network of signal quality leads to module as present communications network, carries out the processing of dns resolution server.Since there are two connect tool
Enter internet link, it is necessary to which domain name mapping setting unit carries out default route configuration in advance: default gateway be exactly data packet not
The routing rule for matching any setting can flow to specified address.Pass through route add default gw xx.xx.xx.xx
SHELL order is configured, such as route add default gw 10.212.18.13.10.212.18.13 being obtained for DHCP
The IP of the carrier server distribution taken.Domain name clothes are carried out by revision DNS domain name configuration file vim/etc/resolv.conf
Business device address updates, and increased DNS domain name address is the DNS for the carrier server distribution that DHCP is obtained.Pass through operating system
The IP of Ping carrier server distribution is ordered, such as without there is overtime phenomenon, then it represents that link connection is normal；Operating system life
Ping www.baidu.com is enabled, such as without there is overtime phenomenon, then it represents that dns resolution is normal.
As shown in Fig. 2, the implementation of the car wireless terminal system of the promotion online rate of rail traffic wireless terminal of the invention
Example is respectively connected to first network and the second network using double set redundancy structures.In the present embodiment, first network is mobile network
Network, the second network are telecommunication network.Car wireless terminal using hot standby soft handoff mechanism realize first network (mobile network) and
Switching between second network (telecommunication network), and when movement, telecommunications network have signal, it is examined by live signal detection module
The signal quality that measures determines current network.When a side because signal strength not enough due to go offline when, car wireless terminal connects automatically
Enter candidate on network chain road, the network automatic cycle to go offline enters dialing process, is judged by hot standby waiting monitoring program to call.
Car wireless terminal system includes processor, first the whole network leads to module, second the whole network leads to module, power splitter and vehicle-mounted
Antenna.Wherein processor leads to module and second the whole network by two-way communication interface (usually USB data interface) and first the whole network
Logical module establishes data connection.First the whole network leads to module and the radiofrequency signal delivery outlet of the logical module of second the whole network is electrically connected to function point
Device.The radiofrequency signal delivery outlet (such as coaxial cable) of power splitter is electrically connected to car antenna.
The function of processor configuration realizes embodiment as shown in Figure 1, that is, the dimension for control and link to data transmit-receive
Shield carries out device enumeration when first the whole network leads to module or second the whole network leads to module access automatically, generates ttyUSB equipment section
Point.First/second the whole network leads to module for access with runner public-network base station, with operators communication mode (such as 5G/4G/
3G/2G) mode carries out Auto-matching, provides the physical channel of remote data communication.Power splitter uses two power splitters (i.e. two into one
Out), car antenna is connected to by coaxial cable, provides radio-frequency channel for car wireless terminal.
Fig. 3 shows the car wireless terminal system embodiment of the promotion online rate of rail traffic wireless terminal of the invention
Overall operation process, that is, promote the flow chart of an embodiment of the method for the online rate of rail traffic wireless terminal.Refer to figure
3, here is the detailed description to the implementation steps of the method for the present embodiment.
It is the processing of live signal detection module first.SIM card detection unit leads to the communication of module to two the whole networks respectively
Interface sends the instruction of detection SIM card state, the feedback information of reception state detection, to detect whether SIM card is in normal shape
State.Then, it is strong to send detection network signal to the communication interface that two the whole networks lead to module respectively for RF signal strength detection unit
The instruction of degree, the feedback information of received signal strength.
Followed by the processing of auto dialing module.Network state detection unit leads to the communication interface hair of module to two the whole networks
AT+CREG instructions query network registry state is sent, judges whether to succeed in registration according to query result, if accessed SIM card
Wireless network (mobile network or telecommunication network) where attribute and the condition for having access wireless public network.Then, dialing is single
Member uses NDIS dial mode, is dialled by leading to module Sending dialled number AT instruction to two the whole networks respectively.After delay,
Obtain the IP address of the remote server (Dynamic Host Configuration Protocol server) of operator automatically by obtaining IP address unit automatically, access should
Dynamic Host Configuration Protocol server is to obtain internal communication links.
It is finally the processing of routing gateway module.Mould is led to by the high the whole network of routing gateway Unit selection signal quality first
Block is as present communications network, then carries out the processing of dns resolution server.
Although for simplify explain the above method is illustrated to and is described as a series of actions, it should be understood that and understand,
The order that these methods are not acted is limited, because according to one or more embodiments, some movements can occur in different order
And/or with from it is depicted and described herein or herein it is not shown and describe but it will be appreciated by those skilled in the art that other
Movement concomitantly occurs.
Those skilled in the art will further appreciate that, the various illustratives described in conjunction with the embodiments described herein
Logic plate, module, circuit and algorithm steps can be realized as electronic hardware, computer software or combination of the two.It is clear
Explain to Chu this interchangeability of hardware and software, various illustrative components, frame, module, circuit and step be above with
Its functional form makees generalization description.Such functionality be implemented as hardware or software depend on concrete application and
It is applied to the design constraint of total system.Technical staff can realize every kind of specific application described with different modes
Functionality, but such realization decision should not be interpreted to cause departing from the scope of the present invention.
General place can be used in conjunction with various illustrative logic plates, module and the circuit that presently disclosed embodiment describes
Reason device, digital signal processor (DSP), specific integrated circuit (ASIC), field programmable gate array (FPGA) other are compiled
Journey logical device, discrete door or transistor logic, discrete hardware component or its be designed to carry out function described herein
Any combination is realized or is executed.General processor can be microprocessor, but in alternative, which, which can be, appoints
What conventional processor, controller, microcontroller or state machine.Processor is also implemented as calculating the combination of equipment, example
As DSP and the combination of microprocessor, multi-microprocessor, the one or more microprocessors to cooperate with DSP core or it is any its
His such configuration.
The step of method or algorithm for describing in conjunction with embodiment disclosed herein, can be embodied directly in hardware, in by processor
It is embodied in the software module of execution or in combination of the two.Software module can reside in RAM memory, flash memory, ROM and deposit
Reservoir, eprom memory, eeprom memory, register, hard disk, removable disk, CD-ROM or known in the art appoint
In the storage medium of what other forms.Exemplary storage medium is coupled to processor so that the processor can be from/to the storage
Medium reads and writees information.In alternative, storage medium can be integrated into processor.Pocessor and storage media can
It resides in ASIC.ASIC can reside in user terminal.In alternative, pocessor and storage media can be used as discrete sets
Part is resident in the user terminal.
In one or more exemplary embodiments, described function can be in hardware, software, firmware, or any combination thereof
Middle realization.If being embodied as computer program product in software, each function can be used as one or more item instructions or generation
Code may be stored on the computer-readable medium or be transmitted by it.Computer-readable medium includes computer storage medium and communication
Both media comprising any medium for facilitating computer program to shift from one place to another.Storage medium can be can quilt
Any usable medium of computer access.It is non-limiting as example, such computer-readable medium may include RAM, ROM,
EEPROM, CD-ROM or other optical disc storages, disk storage or other magnetic storage apparatus can be used to carrying or store instruction
Or data structure form desirable program code and any other medium that can be accessed by a computer.Any connection is also by by rights
Referred to as computer-readable medium.For example, if software is using coaxial cable, fiber optic cables, twisted pair, digital subscriber line
(DSL) or the wireless technology of such as infrared, radio and microwave etc is passed from web site, server or other remote sources
It send, then the coaxial cable, fiber optic cables, twisted pair, DSL or such as infrared, radio and microwave etc is wireless
Technology is just included among the definition of medium.Disk (disk) and dish (disc) as used herein include compression dish
(CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and blu-ray disc, which disk (disk) are often reproduced in a manner of magnetic
Data, and dish (disc) with laser reproduce data optically.Combinations of the above should also be included in computer-readable medium
In the range of.
Offer is to make any person skilled in the art all and can make or use this public affairs to the previous description of the disclosure
It opens.The various modifications of the disclosure all will be apparent for a person skilled in the art, and as defined herein general
Suitable principle can be applied to other variants without departing from the spirit or scope of the disclosure.The disclosure is not intended to be limited as a result,
Due to example described herein and design, but should be awarded and principle disclosed herein and novel features phase one
The widest scope of cause.
Claims (7)
1. a kind of car wireless terminal device for promoting the online rate of rail traffic wireless terminal, which is characterized in that onboard wireless is whole
End device is respectively connected to first network and the second network using double set redundancy structures, for establishing antenna feeder radio communication physics chain
Road controls signal detection and networking, wherein car wireless terminal device includes live signal detection module, automatic poking
Number module and routing gateway module, the output end of live signal detection module are separately connected auto dialing module and routing gateway mould
Block, the input terminal of routing gateway module are separately connected live signal detection module and auto dialing module, in which:
Live signal detection module, the real-time detection for the environment that dials；
Auto dialing module, for network state detection and the acquisition of AT instruction dialing and automatic IP；
Routing gateway module, for Route Selection judgement and gateway and domain name mapping setting.
2. the car wireless terminal device according to claim 1 for promoting the online rate of rail traffic wireless terminal, feature
It is, car wireless terminal device realizes the switching between first network and the second network using hot standby soft handoff mechanism.
3. the car wireless terminal device according to claim 1 for promoting the online rate of rail traffic wireless terminal, feature
It is, live signal detection module includes SIM card detection unit and RF signal strength detection unit, in which:
SIM card detection unit leads to module to first the whole network respectively and second the whole network leads to the communication interface transmission detection SIM card of module
The instruction of state determines whether SIM card state is normal according to the feedback information of the state-detection received；
RF signal strength detection unit leads to module to first the whole network respectively and second the whole network leads to the communication interface transmission inspection of module
The instruction for surveying network signal intensity, determines network signal intensity according to the feedback information of the signal strength received.
4. the car wireless terminal device according to claim 1 for promoting the online rate of rail traffic wireless terminal, feature
It is, auto dialing module includes network state detection unit, dialing unit and automatic acquisition IP address unit, in which:
Network state detection unit, the communication interface for leading to module and the logical module of second the whole network to first the whole network send inquiry net
The instruction of network login state determines whether SIM card has succeeded in registration, whether accesses SIM according to the result that instructions query is fed back
Wireless network where card attribute, if having the condition of access wireless public network；
Dialing unit is dialled for using NDIS dial mode by leading to module transmission to the logical module of first the whole network and second the whole network
Number instruction, according to feedback result determine dialing whether succeed；
It is automatic to obtain IP address unit, for obtaining the IP address of remote server automatically, it is successfully accessed remote server, is obtained
Internal communication links.
5. the car wireless terminal device according to claim 1 for promoting the online rate of rail traffic wireless terminal, feature
It is, routing gateway module includes routing gateway unit and domain name mapping setting unit, in which:
Routing gateway unit, the whole network high for selection signal quality lead to module as present communications network, carry out dns resolution clothes
The processing of business device；
Domain name mapping setting unit carries out default route configuration in advance.
6. a kind of car wireless terminal system for promoting the online rate of rail traffic wireless terminal, which is characterized in that onboard wireless is whole
End system composition includes processor, first the whole network leads to module, second the whole network leads to module, power splitter and car antenna, and processor is logical
It crosses two-way communication interface and the logical module of first the whole network, the logical module of second the whole network establishes data connection respectively, first the whole network leads to module
The radiofrequency signal delivery outlet for leading to module with second the whole network is electrically connected to power splitter, and the radiofrequency signal delivery outlet of power splitter is electrically connected to
Car antenna, in which:
Processor is configured to the car wireless terminal device as described in any one of claims 1 to 5, for onboard wireless
The data transmit-receive of terminal control and safeguard to communication link, leads to module in first the whole network or second the whole network leads to module and connects
Fashionable automatic carry out device enumeration generates device node；
First the whole network leads to module and second the whole network leads to module, is used to base station access, with operator's communication mode Auto-matching, mentions
For the physical channel of remote data communication；
Power splitter, for providing radio-frequency channel for car wireless terminal.
7. a kind of method for promoting the online rate of rail traffic wireless terminal, method are whole in onboard wireless as claimed in claim 6
It is realized on end system, which is characterized in that this method comprises:
Step 1: first the whole network into car wireless terminal leads to mould to the SIM card detection unit in live signal detection module respectively
The instruction of the communication interface transmission detection SIM card state of block and the logical module of second the whole network, the feedback information of reception state detection, with
Whether detection SIM card is in normal condition, then passes through the RF signal strength detection unit difference in live signal detection module
The instruction for leading to the communication interface transmission detection network signal intensity of module and the logical module of second the whole network to first the whole network, receives signal
The feedback information of intensity；
Step 2: the network state detection unit in auto dialing module leads to module to first the whole network and second the whole network leads to module
Communication interface sends the instruction of inquiry network registry state, judges whether SIM card succeeds in registration according to query result, if
Wireless network where access SIM card attribute simultaneously has the condition for accessing wireless public network, then, passes through dialling in auto dialing module
Number unit uses NDIS dial mode, by lead to module to first the whole network respectively and second the whole network lead to module Sending dialled number instruct into
Row dialing, obtains the IP of remote server automatically after delay by the automatic acquisition IP address unit in auto dialing module
The remote server is accessed to obtain internal communication links in address；
Step 3: module being led to by the high the whole network of the one of signal quality of routing gateway Unit selection of routing gateway module and is made
For present communications network, the processing of dns resolution server is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910831659.4A CN110519791B (en) | 2019-09-04 | 2019-09-04 | Vehicle-mounted wireless terminal device, system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910831659.4A CN110519791B (en) | 2019-09-04 | 2019-09-04 | Vehicle-mounted wireless terminal device, system and method |
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| Publication Number | Publication Date |
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| CN110519791A true CN110519791A (en) | 2019-11-29 |
| CN110519791B CN110519791B (en) | 2023-06-06 |
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Cited By (1)
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